Courses
 
  Course Numbers
1       2       3      
4       5       6      
7       8       9      
10     11     12
13     14     15
16     17     18
19     20     21
22     23     24
25     26     27
28     29     30
31     32     33
34     35     36
37     38     39
40     41     42
43     44     45
 
     
19. HDRI and Image-Based Lighting
Monday, Half Day
Part I: 10:30 am - 12:15 pm
Part II: 6 - 8 pm
Room 29 A-D
Level: Intermediate

Lighting CG scenes with captured real-world light can increase realism and help integrate computer-generated and real-world imagery. This course teaches the theory behind HDRI and IBL and presents practical production-ready techniques for applying them. It includes high-dynamic-range imagery, light probes, global illumination, approximation methods, and IBL-based live-action compositing.

Prerequisites
Some experience with a traditional modeling/rendering package, such as 3DS Max, LightWave, Maya, or XSI, and some familiarity with basic lighting and compositing. Not required: advanced ray tracing or global illumination knowledge.

Topics
High-dynamic-range photography, lighting acquisition, image-based lighting and compositing, real-time techniques, and ongoing research in illuminating real people and objects with sampled light. Use of these techniques in actual productions with particular software pipelines and the required basics of light reflection and global illumination.

Syllabus and Additional Resources

Organizer
Paul Debevec
University of Southern California, Institute for Creative Technologies

Lecturers
Rod Bogart
Industrial Light + Magic

Paul Debevec
University of Southern California, Institute for Creative Technologies

Frank Vitz
Independent VFX Supervisor

Greg Ward
Anyhere Software

Schedule

Part 1: Fundamentals of HDR and IBL
10:30 Introduction
Debevec
10:40 Global Illumination and HDRI File Formats
- Global Illumination Techniques: Radiosity, Ray-Tracing, Monte Carlo
- High Dynamic Range Image File Formats: Radiance, PFM, LogLuv TIFF, OpenEXR
Ward
11:25 Image-Based Lighting
- Capturing Real-World Illumination
- Illuminating Synthetic Objects With Real Light
- Rendering Synthetic Objects Into Real Scenes
- Making "Rendering With Natural Light" and "Fiat Lux"
Debevec
Part 2: HDR and IBL in Production
6:00 Introduction
Debevec
6:05 HDR and IBL at Industrial Light + Magic
- The OpenEXR File Format
- Lighting and Modeling With Omnidirectional HDR Imagery
- What Does 1 Mean?
- Compositing, Shading, and Painting With Numbers Greater Than 1
Bogart
6:35 Specialized HDRI/IBL Techniques
- Capturing Light Probes That Include the Sun
- Alternate IBL Approaches
- Illuminating Real Objects and People: Light Stage 2
- Lighting Reproduction for Compositing: Light Stage 3
Debevec
7:15 HDRI and IBL for X-Men 2
- Managing Gamma and Color Spaces
- Mystique effects in X-Men 2
- Using HDRI on X-Men 2
- Lighting Capture Design Decisions
Vitz
7:45 Audience Questions and Answers
Debevec, Ward, Vitz, and Bogart



   presentations

   experiences    services
   > COURSES    > ACADEMIC EXHIBITS    > BIRDS OF A FEATHER  
   > EDUCATORS    > ART GALLERY    > GET INVOLVED  
      PROGRAM    > COMPUTER    > GRAPHICSNET  
   > EXHIBITOR TECH
      ANIMATION FESTIVAL    > INTERNATIONAL  
      TALKS    > EMERGING       RESOURCES  
   > INTRO TO
      TECHNOLOGIES    > PATHFINDERS  
      COMPUTER GRAPHICS    > sigKIDS      
   > KEYNOTE ADDRESS /
   > GUERILLA STUDIO      
      AWARDS          
   > PAPERS          
   > SKETCHES &          
      APPLICATIONS          
   > SPECIAL SESSIONS          
   > WEB GRAPHICS